3402.31.90.00 - Other 🖩

This HTS category, 3402.31.90.00, encompasses "Other" linear alkylbenzene sulfonic acids and their salts, specifically those that are not of the aromatic or modified aromatic type described in the sibling category 3402.31.10.00. These substances are classified as anionic organic surface-active agents and are distinct from soap and other washing or cleaning preparations covered by heading 3401 or 3402. The primary function of these compounds is to reduce surface tension and facilitate the mixing of immiscible substances, making them essential components in various industrial and consumer cleaning and processing applications.

The distinction between this category and its sibling lies in the specific chemical structure of the alkylbenzene moiety. While aromatic or modified aromatic linear alkylbenzene sulfonic acids and their salts are explicitly categorized under 3402.31.10.00, this residual category captures all other linear alkylbenzene sulfonic acids and their salts that do not meet that specific structural definition. This ensures a comprehensive classification of anionic linear alkylbenzene sulfonic acids based on their inherent chemical properties and origin.

As this is a leaf node, there are no further subcategories. Classification within 3402.31.90.00 is determined by identifying the substance as a linear alkylbenzene sulfonic acid or its salt, it being anionic, and not fitting the more specific description of "aromatic or modified aromatic" found in the sibling heading. Practical considerations for classification would involve analyzing the chemical composition and structure of the product to ascertain the nature of the alkylbenzene component.